On 2011/12/30 00:06, MT Julianto wrote:
On 27 December 2011 15:11, MT Julianto <[email protected]
<mailto:[email protected]>> wrote:
On 27 December 2011 08:57, zxq9 <[email protected] <mailto:[email protected]>>
wrote:
On 12/27/2011 04:12 PM, MT Julianto wrote:
The machine looks (sometimes) sleep, although it is always on,
idle, no
screensavers is running, and no network changes surroundings.
That's
never happened before migrated, and never happened when connecting
or
neighbor machines in the office.
I haven't had this issue myself at all, but power settings is the first
place I would start looking. Another place to check might be the sshd
settings (but again, this would be strange since others haven't reported
the same issue).
What settings of sshd might related to the problem? I used fresh
installation of SL61, did small change to /etc/ssh/sshd_config:
"PermitRootLogin no" and always use ssh with authentication key.
It could also be routing in the office. But I'd check the above two
things before I start wondering if routers don't like to remember my
system's MAC or DHCP address or something (though its possible if your
office needs some setting for DHCP leases to last the right amount of
time or whatever).
The machine got IP (public IP) via dhcp with fixed-address
I'll watch the dhcp lease further whenever the problem occurs again later,
Thanks for your replies :-)
All possibilities are negative: not power mode issue, not dhcp issue (see
below), not iptables issue (see below), not hacking issue (/var/log/secure is
clear (no attack) at that fail time).
What happens if you ping the host before trying ssh?
Can you check if the ssh daemon is running or if it's setup to use xinetd?
(Normally it runs as a daemon. I'm hypothesizing that it is running off an
inet daemon and taking too long to load or something.)
{^_^}
